SCIP
Solving Constraint Integer Programs
implics.c File Reference
Detailed Description
methods for implications, variable bounds, and clique tables
Definition in file implics.c.
#include "scip/event.h"#include "scip/implics.h"#include "scip/misc.h"#include "scip/pub_implics.h"#include "scip/pub_message.h"#include "scip/pub_misc.h"#include "scip/pub_misc_sort.h"#include "scip/pub_var.h"#include "scip/set.h"#include "scip/struct_implics.h"#include "scip/struct_set.h"#include "scip/struct_stat.h"#include "scip/var.h"Go to the source code of this file.
Macros | |
| #define | cliqueCheck(clique) |
| #define | HASHTABLE_CLIQUETABLE_SIZE 100 |
| #define | checkNEntries(cliquetable) TRUE |
Macro Definition Documentation
◆ cliqueCheck
◆ HASHTABLE_CLIQUETABLE_SIZE
◆ checkNEntries
Function Documentation
◆ vboundsCreate()
|
static |
creates a variable bounds data structure
- Parameters
-
vbounds pointer to store variable bounds data structure blkmem block memory
Definition at line 55 of file implics.c.
References BMSallocBlockMemory, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by vboundsEnsureSize().
◆ SCIPvboundsFree()
| void SCIPvboundsFree | ( | SCIP_VBOUNDS ** | vbounds, |
| BMS_BLKMEM * | blkmem | ||
| ) |
frees a variable bounds data structure
- Parameters
-
vbounds pointer to store variable bounds data structure blkmem block memory
Definition at line 73 of file implics.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArrayNull, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarRemove(), SCIPvboundsDel(), SCIPvboundsShrink(), and varFree().
◆ vboundsEnsureSize()
|
static |
ensures, that variable bounds arrays can store at least num entries
- Parameters
-
vbounds pointer to variable bounds data structure blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 91 of file implics.c.
References BMSreallocBlockMemoryArray, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPsetCalcMemGrowSize(), and vboundsCreate().
Referenced by SCIPvboundsAdd().
◆ vboundsSearchPos()
|
static |
binary searches the insertion position of the given variable in the vbounds data structure
- Parameters
-
vbounds variable bounds data structure, or NULL var variable to search in vbounds data structure negativecoef is coefficient b negative? insertpos pointer to store position where to insert new entry found pointer to store whether the same variable was found at the returned pos
Definition at line 125 of file implics.c.
References SCIP_VBounds::coefs, FALSE, SCIP_VBounds::len, NULL, SCIP_Bool, SCIP_OKAY, SCIPsortedvecFindPtr(), TRUE, and SCIP_VBounds::vars.
Referenced by SCIPvboundsAdd(), and SCIPvboundsDel().
◆ SCIPvboundsAdd()
| SCIP_RETCODE SCIPvboundsAdd | ( | SCIP_VBOUNDS ** | vbounds, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_BOUNDTYPE | vboundtype, | ||
| SCIP_VAR * | var, | ||
| SCIP_Real | coef, | ||
| SCIP_Real | constant, | ||
| SCIP_Bool * | added | ||
| ) |
adds a variable bound to the variable bounds data structure
- Parameters
-
vbounds pointer to variable bounds data structure blkmem block memory set global SCIP settings vboundtype type of variable bound (LOWER or UPPER) var variable z in x <= b*z + d or x >= b*z + d coef coefficient b in x <= b*z + d or x >= b*z + d constant constant d in x <= b*z + d or x >= b*z + d added pointer to store whether the variable bound was added
Definition at line 206 of file implics.c.
References FALSE, MAX, MIN, NULL, SCIP_Bool, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIP_VARTYPE_CONTINUOUS, SCIPsetIsZero(), SCIPvarGetStatus(), SCIPvarGetType(), TRUE, vboundsEnsureSize(), and vboundsSearchPos().
Referenced by varAddVbound().
◆ SCIPvboundsDel()
| SCIP_RETCODE SCIPvboundsDel | ( | SCIP_VBOUNDS ** | vbounds, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_VAR * | vbdvar, | ||
| SCIP_Bool | negativecoef | ||
| ) |
removes from variable x a variable bound x >=/<= b*z + d with binary or integer z
- Parameters
-
vbounds pointer to variable bounds data structure blkmem block memory vbdvar variable z in x >=/<= b*z + d negativecoef is coefficient b negative?
Definition at line 288 of file implics.c.
References NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPvboundsFree(), and vboundsSearchPos().
Referenced by SCIPvarRemoveCliquesImplicsVbs().
◆ SCIPvboundsShrink()
| void SCIPvboundsShrink | ( | SCIP_VBOUNDS ** | vbounds, |
| BMS_BLKMEM * | blkmem, | ||
| int | newnvbds | ||
| ) |
reduces the number of variable bounds stored in the given variable bounds data structure
- Parameters
-
vbounds pointer to variable bounds data structure blkmem block memory newnvbds new number of variable bounds
Definition at line 333 of file implics.c.
References NULL, and SCIPvboundsFree().
Referenced by SCIPvarRemoveCliquesImplicsVbs().
◆ SCIP_DECL_SORTPTRCOMP()
|
static |
comparator function for implication variables in the implication data structure
Definition at line 359 of file implics.c.
References NULL, and SCIPvarGetIndex().
◆ checkImplics()
|
static |
performs integrity check on implications data structure
- Parameters
-
implics implications data structure
Definition at line 383 of file implics.c.
References FALSE, SCIP_Implics::nimpls, NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, TRUE, SCIP_Implics::types, and SCIP_Implics::vars.
Referenced by SCIPimplicsAdd(), and SCIPimplicsDel().
◆ implicsCreate()
|
static |
creates an implications data structure
- Parameters
-
implics pointer to store implications data structure blkmem block memory
Definition at line 425 of file implics.c.
References BMSallocBlockMemory, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by implicsEnsureSize().
◆ SCIPimplicsFree()
| void SCIPimplicsFree | ( | SCIP_IMPLICS ** | implics, |
| BMS_BLKMEM * | blkmem | ||
| ) |
frees an implications data structure
- Parameters
-
implics pointer of implications data structure to free blkmem block memory
Definition at line 451 of file implics.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArrayNull, and NULL.
Referenced by SCIPimplicsDel(), SCIPvarAggregate(), SCIPvarRemove(), SCIPvarRemoveCliquesImplicsVbs(), and varFree().
◆ implicsEnsureSize()
|
static |
ensures, that arrays for x == 0 or x == 1 in implications data structure can store at least num entries
- Parameters
-
implics pointer to implications data structure blkmem block memory set global SCIP settings varfixing FALSE if size of arrays for x == 0 has to be ensured, TRUE for x == 1 num minimum number of entries to store
Definition at line 474 of file implics.c.
References BMSreallocBlockMemoryArray, implicsCreate(), NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, and SCIPsetCalcMemGrowSize().
Referenced by SCIPimplicsAdd().
◆ implicsSearchVar()
|
static |
gets the positions of the implications y >= l and y <= u in the implications data structure; if no lower or upper bound implication for y was found, -1 is returned
- Parameters
-
implics implications data structure varfixing FALSE if y is searched in implications for x == 0, TRUE for x == 1 implvar variable y to search for poslower pointer to store position of y_lower (-1 if not found) posupper pointer to store position of y_upper (-1 if not found) posadd pointer to store position of first y entry, or where a new y entry should be placed
Definition at line 512 of file implics.c.
References SCIP_Implics::nimpls, NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIPsortedvecFindPtr(), SCIP_Implics::types, and SCIP_Implics::vars.
Referenced by implicsSearchImplic(), SCIPimplicsGetVarImplicPoss(), and SCIPimplicsGetVarImplics().
◆ implicsSearchImplic()
|
static |
returns whether variable y is already contained in implications for x == 0 or x == 1 with the given impltype y can be contained in structure with y >= b (y_lower) and y <= b (y_upper)
- Parameters
-
implics implications data structure varfixing FALSE if y is searched in implications for x == 0, TRUE for x == 1 implvar variable y to search for impltype type of implication y <=/>= b to search for poslower pointer to store position of y_lower (inf if not found) posupper pointer to store position of y_upper (inf if not found) posadd pointer to store correct position (with respect to impltype) to add y
Definition at line 596 of file implics.c.
References implicsSearchVar(), NULL, and SCIP_BOUNDTYPE_LOWER.
Referenced by SCIPimplicsAdd(), SCIPimplicsContainsImpl(), and SCIPimplicsDel().
◆ SCIPimplicsAdd()
| SCIP_RETCODE SCIPimplicsAdd | ( | SCIP_IMPLICS ** | implics, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_STAT * | stat, | ||
| SCIP_Bool | varfixing, | ||
| SCIP_VAR * | implvar, | ||
| SCIP_BOUNDTYPE | impltype, | ||
| SCIP_Real | implbound, | ||
| SCIP_Bool | isshortcut, | ||
| SCIP_Bool * | conflict, | ||
| SCIP_Bool * | added | ||
| ) |
adds an implication x == 0/1 -> y <= b or y >= b to the implications data structure; the implication must be non-redundant
- Parameters
-
implics pointer to implications data structure blkmem block memory set global SCIP settings stat problem statistics varfixing FALSE if implication for x == 0 has to be added, TRUE for x == 1 implvar variable y in implication y <= b or y >= b impltype type of implication y <= b (SCIP_BOUNDTYPE_UPPER) or y >= b (SCIP_BOUNDTYPE_LOWER) implbound bound b in implication y <= b or y >= b isshortcut is the implication a shortcut, i.e., added as part of the transitive closure of another implication? conflict pointer to store whether implication causes a conflict for variable x added pointer to store whether the implication was added
Definition at line 633 of file implics.c.
References BMSmoveMemoryArray, checkImplics(), FALSE, implicsEnsureSize(), implicsSearchImplic(), SCIP_Stat::nimplications, NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPsetDebugMsg, SCIPsetIsFeasGE(), SCIPsetIsFeasGT(), SCIPsetIsFeasLE(), SCIPsetIsFeasLT(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarIsActive(), and TRUE.
Referenced by varAddImplic().
◆ SCIPimplicsDel()
| SCIP_RETCODE SCIPimplicsDel | ( | SCIP_IMPLICS ** | implics, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_Bool | varfixing, | ||
| SCIP_VAR * | implvar, | ||
| SCIP_BOUNDTYPE | impltype | ||
| ) |
removes the implication x <= 0 or x >= 1 ==> y <= b or y >= b from the implications data structure
- Parameters
-
implics pointer to implications data structure blkmem block memory set global SCIP settings varfixing FALSE if y should be removed from implications for x <= 0, TRUE for x >= 1 implvar variable y in implication y <= b or y >= b impltype type of implication y <= b (SCIP_BOUNDTYPE_UPPER) or y >= b (SCIP_BOUNDTYPE_LOWER)
Definition at line 836 of file implics.c.
References BMSmoveMemoryArray, checkImplics(), implicsSearchImplic(), NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_OKAY, SCIPimplicsFree(), SCIPsetDebugMsg, and SCIPvarGetName().
Referenced by SCIPvarRemoveCliquesImplicsVbs().
◆ SCIPimplicsGetVarImplics()
| void SCIPimplicsGetVarImplics | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing, | ||
| SCIP_VAR * | implvar, | ||
| SCIP_Bool * | haslowerimplic, | ||
| SCIP_Bool * | hasupperimplic | ||
| ) |
returns which implications on given variable y are contained in implications for x == 0 or x == 1
- Parameters
-
implics implications data structure varfixing FALSE if y should be searched in implications for x == 0, TRUE for x == 1 implvar variable y to search for haslowerimplic pointer to store whether there exists an implication y >= l hasupperimplic pointer to store whether there exists an implication y <= u
Definition at line 894 of file implics.c.
References implicsSearchVar(), and NULL.
◆ SCIPimplicsGetVarImplicPoss()
| void SCIPimplicsGetVarImplicPoss | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing, | ||
| SCIP_VAR * | implvar, | ||
| int * | lowerimplicpos, | ||
| int * | upperimplicpos | ||
| ) |
returns which implications on given variable y are contained in implications for x == 0 or x == 1
- Parameters
-
implics implications data structure varfixing FALSE if y should be searched in implications for x == 0, TRUE for x == 1 implvar variable y to search for lowerimplicpos pointer to store the position of an implication y >= l upperimplicpos pointer to store the position of an implication y <= u
Definition at line 916 of file implics.c.
References implicsSearchVar(), and NULL.
Referenced by SCIPvarGetImplicVarBounds().
◆ SCIPimplicsContainsImpl()
| SCIP_Bool SCIPimplicsContainsImpl | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing, | ||
| SCIP_VAR * | implvar, | ||
| SCIP_BOUNDTYPE | impltype | ||
| ) |
returns whether an implication y <= b or y >= b is contained in implications for x == 0 or x == 1
- Parameters
-
implics implications data structure varfixing FALSE if y should be searched in implications for x == 0, TRUE for x == 1 implvar variable y to search for impltype type of implication y <=/>= b to search for
Definition at line 933 of file implics.c.
References implicsSearchImplic().
Referenced by SCIPvarHasImplic().
◆ cliquetableSwapCliques()
|
static |
- Parameters
-
cliquetable clique table data structure first first index second second index
Definition at line 956 of file implics.c.
References SCIP_CliqueTable::cliques, and SCIP_Clique::index.
Referenced by cliquetableMarkCliqueForCleanup(), and SCIPcliquetableCleanup().
◆ cliquetableMarkCliqueForCleanup()
|
static |
- Parameters
-
cliquetable clique table data structure clique clique data structure
Definition at line 982 of file implics.c.
References SCIP_CliqueTable::cliques, cliquetableSwapCliques(), SCIP_Clique::index, SCIP_CliqueTable::ncliques, SCIP_CliqueTable::ndirtycliques, and SCIPcliqueIsCleanedUp().
Referenced by SCIPcliqueDelVar().
◆ cliqueCreateWithData()
|
static |
creates a clique data structure with already created variables and values arrays in the size of 'size'
- Parameters
-
clique pointer to store clique data structure blkmem block memory size initial size of clique vars binary variables in the clique: at most one can be set to the given value values values of the variables in the clique nvars number of variables in the clique id unique identifier of the clique isequation is the clique an equation or an inequality?
Definition at line 1004 of file implics.c.
References BMSallocBlockMemory, BMSduplicateBlockMemoryArray, FALSE, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by SCIPcliquetableAdd().
◆ cliqueFree()
|
static |
frees a clique data structure
- Parameters
-
clique pointer to store clique data structure blkmem block memory
Definition at line 1038 of file implics.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArrayNull, and NULL.
Referenced by SCIPcliquetableAdd(), SCIPcliquetableCleanup(), and SCIPcliquetableFree().
◆ cliqueEnsureSize()
|
static |
ensures, that clique arrays can store at least num entries
- Parameters
-
clique clique data structure blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 1055 of file implics.c.
References BMSreallocBlockMemoryArray, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPsetCalcMemGrowSize(), SCIP_Clique::size, SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by SCIPcliqueAddVar().
◆ SCIPcliqueSearchVar()
| int SCIPcliqueSearchVar | ( | SCIP_CLIQUE * | clique, |
| SCIP_VAR * | var, | ||
| SCIP_Bool | value | ||
| ) |
returns the position of the given variable/value pair in the clique; returns -1 if variable/value pair is not member of the clique
- Parameters
-
clique clique data structure var variable to search for value value of the variable in the clique
Definition at line 1081 of file implics.c.
References NULL, SCIP_Clique::nvars, SCIPvarGetIndex(), SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by SCIPcliqueDelVar(), SCIPcliqueHasVar(), and SCIPcliquelistCheck().
◆ SCIPcliqueHasVar()
| SCIP_Bool SCIPcliqueHasVar | ( | SCIP_CLIQUE * | clique, |
| SCIP_VAR * | var, | ||
| SCIP_Bool | value | ||
| ) |
returns whether the given variable/value pair is member of the given clique
- Parameters
-
clique clique data structure var variable to remove from the clique value value of the variable in the clique
Definition at line 1141 of file implics.c.
References SCIPcliqueSearchVar().
Referenced by addRltTerm(), and getBinaryProductExpr().
◆ SCIPcliqueAddVar()
| SCIP_RETCODE SCIPcliqueAddVar | ( | SCIP_CLIQUE * | clique, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_VAR * | var, | ||
| SCIP_Bool | value, | ||
| SCIP_Bool * | doubleentry, | ||
| SCIP_Bool * | oppositeentry | ||
| ) |
adds a single variable to the given clique
- Parameters
-
clique clique data structure blkmem block memory set global SCIP settings var variable to add to the clique value value of the variable in the clique doubleentry pointer to store whether the variable and value occurs twice in the clique oppositeentry pointer to store whether the variable with opposite value is in the clique
Definition at line 1151 of file implics.c.
References BMSmoveMemoryArray, cliqueEnsureSize(), SCIP_Clique::eventsissued, FALSE, SCIP_Clique::id, NULL, SCIP_Clique::nvars, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPsetDebugMsg, SCIPsortedvecFindPtr(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarIsBinary(), TRUE, SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by SCIPvarAddClique().
◆ SCIPcliqueDelVar()
| void SCIPcliqueDelVar | ( | SCIP_CLIQUE * | clique, |
| SCIP_CLIQUETABLE * | cliquetable, | ||
| SCIP_VAR * | var, | ||
| SCIP_Bool | value | ||
| ) |
removes a single variable from the given clique
- Parameters
-
clique clique data structure cliquetable clique table data structure var variable to remove from the clique value value of the variable in the clique
Definition at line 1285 of file implics.c.
References cliquetableMarkCliqueForCleanup(), SCIP_Clique::id, SCIP_CliqueTable::incleanup, SCIP_Clique::index, NULL, SCIPcliqueSearchVar(), SCIPdebugMessage, SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetUbGlobal(), SCIPvarIsBinary(), SCIP_Clique::startcleanup, SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by SCIPcliquelistRemoveFromCliques(), and SCIPvarDelClique().
◆ cliquesSearchClique()
|
static |
gets the position of the given clique in the cliques array; returns -1 if clique is not member of cliques array
- Parameters
-
cliques array of cliques ncliques number of cliques in the cliques array clique clique to search for
Definition at line 1333 of file implics.c.
References SCIP_Clique::id, and NULL.
Referenced by SCIPcliquelistDel().
◆ cliquelistCreate()
|
static |
creates a clique list data structure
- Parameters
-
cliquelist pointer to store clique list data structure blkmem block memory
Definition at line 1422 of file implics.c.
References BMSallocBlockMemory, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by SCIPcliquelistAdd().
◆ SCIPcliquelistFree()
| void SCIPcliquelistFree | ( | SCIP_CLIQUELIST ** | cliquelist, |
| BMS_BLKMEM * | blkmem | ||
| ) |
frees a clique list data structure
- Parameters
-
cliquelist pointer to the clique list data structure blkmem block memory
Definition at line 1441 of file implics.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArrayNull, and NULL.
Referenced by SCIPcliquelistDel(), and varFree().
◆ cliquelistEnsureSize()
|
static |
ensures, that clique list arrays can store at least num entries
- Parameters
-
cliquelist clique list data structure blkmem block memory set global SCIP settings value value of the variable for which the clique list should be extended num minimum number of entries to store
Definition at line 1458 of file implics.c.
References BMSreallocBlockMemoryArray, SCIP_CliqueList::cliques, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPsetCalcMemGrowSize(), and SCIP_CliqueList::size.
Referenced by SCIPcliquelistAdd().
◆ SCIPcliquelistAdd()
| SCIP_RETCODE SCIPcliquelistAdd | ( | SCIP_CLIQUELIST ** | cliquelist, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_Bool | value, | ||
| SCIP_CLIQUE * | clique | ||
| ) |
adds a clique to the clique list
- Parameters
-
cliquelist pointer to the clique list data structure blkmem block memory set global SCIP settings value value of the variable for which the clique list should be extended clique clique that should be added to the clique list
Definition at line 1482 of file implics.c.
References BMSmoveMemoryArray, cliquelistCreate(), cliquelistEnsureSize(), SCIP_Clique::id, SCIP_CliqueList::ncliques, NULL, SCIP_CALL, SCIP_OKAY, and SCIPsetDebugMsg.
Referenced by SCIPvarAddClique(), SCIPvarAddCliqueToList(), and SCIPvarsAddClique().
◆ SCIPcliquelistDel()
| SCIP_RETCODE SCIPcliquelistDel | ( | SCIP_CLIQUELIST ** | cliquelist, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_Bool | value, | ||
| SCIP_CLIQUE * | clique | ||
| ) |
removes a clique from the clique list
- Parameters
-
cliquelist pointer to the clique list data structure blkmem block memory value value of the variable for which the clique list should be reduced clique clique that should be deleted from the clique list
Definition at line 1527 of file implics.c.
References BMSduplicateBlockMemoryArray, BMSfreeBlockMemoryArray, BMSmoveMemoryArray, cliquesSearchClique(), SCIP_Clique::id, SCIP_CliqueList::ncliques, NULL, SCIP_ALLOC, SCIP_Bool, SCIP_OKAY, SCIPcliqueGetNVars(), SCIPcliqueGetValues(), SCIPcliqueGetVars(), SCIPcliquelistFree(), SCIPdebugMessage, and SCIPsortPtrBool().
Referenced by SCIPvarDelClique(), and SCIPvarDelCliqueFromList().
◆ SCIPcliquelistsHaveCommonClique()
| SCIP_Bool SCIPcliquelistsHaveCommonClique | ( | SCIP_CLIQUELIST * | cliquelist1, |
| SCIP_Bool | value1, | ||
| SCIP_CLIQUELIST * | cliquelist2, | ||
| SCIP_Bool | value2 | ||
| ) |
returns whether the given clique lists have a non-empty intersection, i.e. whether there is a clique that appears in both lists
- Parameters
-
cliquelist1 first clique list data structure value1 value of first variable cliquelist2 second clique list data structure value2 value of second variable
Definition at line 1605 of file implics.c.
References SCIP_CliqueList::cliques, FALSE, SCIP_CliqueList::ncliques, NULL, SCIPcliqueGetId(), and TRUE.
Referenced by SCIPvarsHaveCommonClique().
◆ SCIPcliquelistRemoveFromCliques()
| void SCIPcliquelistRemoveFromCliques | ( | SCIP_CLIQUELIST * | cliquelist, |
| SCIP_CLIQUETABLE * | cliquetable, | ||
| SCIP_VAR * | var, | ||
| SCIP_Bool | irrelevantvar | ||
| ) |
removes all listed entries from the cliques
- Parameters
-
cliquelist clique list data structure cliquetable clique table data structure var active problem variable the clique list belongs to irrelevantvar has the variable become irrelevant, meaning that equality cliques need to be relaxed?
Definition at line 1683 of file implics.c.
References cliqueCheck, SCIP_CliqueList::cliques, SCIP_Clique::equation, FALSE, SCIP_Clique::id, SCIP_CliqueTable::incleanup, SCIP_Clique::index, SCIP_CliqueList::ncliques, NULL, SCIP_Clique::nvars, SCIP_Bool, SCIPcliqueDelVar(), SCIPdebugMessage, SCIPvarGetCliques(), SCIPvarGetName(), SCIPvarGetNCliques(), and SCIPvarIsBinary().
Referenced by SCIPvarRemoveCliquesImplicsVbs().
◆ SCIP_DECL_HASHGETKEY()
|
static |
◆ SCIP_DECL_HASHKEYEQ()
|
static |
returns TRUE iff both keys are equal
Definition at line 1746 of file implics.c.
References FALSE, NULL, SCIP_Clique::nvars, TRUE, SCIP_Clique::values, and SCIP_Clique::vars.
◆ SCIP_DECL_HASHKEYVAL()
|
static |
returns the hash value of the key
Definition at line 1772 of file implics.c.
References SCIP_Clique::nvars, SCIPhashFour, SCIPvarGetIndex(), SCIP_Clique::values, and SCIP_Clique::vars.
◆ SCIPcliquetableCreate()
| SCIP_RETCODE SCIPcliquetableCreate | ( | SCIP_CLIQUETABLE ** | cliquetable, |
| SCIP_SET * | set, | ||
| BMS_BLKMEM * | blkmem | ||
| ) |
creates a clique table data structure
- Parameters
-
cliquetable pointer to store clique table data structure set global SCIP settings blkmem block memory
Definition at line 1786 of file implics.c.
References BMSallocMemory, FALSE, HASHTABLE_CLIQUETABLE_SIZE, MAX, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_HASHSIZE_CLIQUES, SCIP_HASHSIZE_CLIQUES_SMALL, SCIP_OKAY, and SCIPhashtableCreate().
Referenced by SCIPtransformProb().
◆ SCIPcliquetableFree()
| SCIP_RETCODE SCIPcliquetableFree | ( | SCIP_CLIQUETABLE ** | cliquetable, |
| BMS_BLKMEM * | blkmem | ||
| ) |
frees a clique table data structure
- Parameters
-
cliquetable pointer to store clique table data structure blkmem block memory
Definition at line 1822 of file implics.c.
References BMSfreeMemory, BMSfreeMemoryArrayNull, cliqueFree(), NULL, SCIP_OKAY, SCIPdisjointsetFree(), SCIPhashmapFree(), and SCIPhashtableFree().
Referenced by freeTransform(), and freeTransforming().
◆ cliquetableEnsureSize()
|
static |
ensures, that clique table arrays can store at least num entries
- Parameters
-
cliquetable clique table data structure set global SCIP settings num minimum number of entries to store
Definition at line 1859 of file implics.c.
References BMSreallocMemoryArray, SCIP_CliqueTable::cliques, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPsetCalcMemGrowSize(), and SCIP_CliqueTable::size.
Referenced by SCIPcliquetableAdd().
◆ sortAndMergeClique()
|
static |
sort variables regarding their index and remove multiple entries of the same variable
- Parameters
-
clqvars variables of a clique clqvalues clique values, active or negated, for the variables in a clique nclqvars number of clique variables isequation do we have an equation clique at hand? clique clique data structure or NULL blkmem block memory set global SCIP settings stat problem statistics transprob transformed problem origprob original problem tree branch and bound tree if in solving stage reopt reoptimization data structure lp current LP data branchcand branching candidate storage eventqueue event queue cliquetable clique table data structure nbdchgs pointer to store number of fixed variables infeasible pointer to store whether an infeasibility was detected
Definition at line 1882 of file implics.c.
References FALSE, SCIP_Clique::id, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPsetDebugMsg, SCIPsortPtrBool(), SCIPvarDelCliqueFromList(), SCIPvarFixBinary(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarIsBinary(), TRUE, and w.
Referenced by cliqueCleanup(), and SCIPcliquetableAdd().
◆ cliquetableGetNodeIndexBinvar()
|
static |
helper function that returns the graph node index for a variable during connected component detection
- Parameters
-
cliquetable clique table data structure binvar binary (or binary integer or implicit binary) variable
Definition at line 2261 of file implics.c.
References SCIP_CliqueTable::compsfromscratch, NULL, SCIPhashmapExists(), SCIPhashmapGetImageInt(), SCIPvarGetProbvar(), SCIPvarIsActive(), SCIPvarIsBinary(), TRUE, and SCIP_CliqueTable::varidxtable.
Referenced by cliquetableUpdateConnectednessClique(), and SCIPcliquetableGetVarComponentIdx().
◆ cliquetableUpdateConnectednessClique()
|
static |
updates connectedness information for the clique
- Parameters
-
cliquetable clique table data structure clique clique that should be added
Definition at line 2304 of file implics.c.
References cliquetableGetNodeIndexBinvar(), SCIP_CliqueTable::compsfromscratch, SCIP_CliqueTable::djset, FALSE, NULL, SCIP_Clique::nvars, SCIPdisjointsetUnion(), TRUE, and SCIP_Clique::vars.
Referenced by SCIPcliquetableAdd(), and SCIPcliquetableComputeCliqueComponents().
◆ SCIPcliquetableGetVarComponentIdx()
| int SCIPcliquetableGetVarComponentIdx | ( | SCIP_CLIQUETABLE * | cliquetable, |
| SCIP_VAR * | var | ||
| ) |
returns the index of the connected component of the clique graph that the variable belongs to, or -1
- Parameters
-
cliquetable clique table data structure var problem variable
Definition at line 2348 of file implics.c.
References cliquetableGetNodeIndexBinvar(), SCIP_CliqueTable::djset, NULL, SCIPdisjointsetFind(), SCIPdisjointsetGetSize(), and SCIPvarIsBinary().
Referenced by SCIPcalcCliquePartition().
◆ SCIPcliquetableAdd()
| SCIP_RETCODE SCIPcliquetableAdd | ( | SCIP_CLIQUETABLE * | cliquetable, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_STAT * | stat, | ||
| SCIP_PROB * | transprob, | ||
| SCIP_PROB * | origprob, | ||
| SCIP_TREE * | tree, | ||
| SCIP_REOPT * | reopt, | ||
| SCIP_LP * | lp, | ||
| SCIP_BRANCHCAND * | branchcand, | ||
| SCIP_EVENTQUEUE * | eventqueue, | ||
| SCIP_VAR ** | vars, | ||
| SCIP_Bool * | values, | ||
| int | nvars, | ||
| SCIP_Bool | isequation, | ||
| SCIP_Bool * | infeasible, | ||
| int * | nbdchgs | ||
| ) |
adds a clique to the clique table, using the given values for the given variables; performs implications if the clique contains the same variable twice
- Parameters
-
cliquetable clique table data structure blkmem block memory set global SCIP settings stat problem statistics transprob transformed problem origprob original problem tree branch and bound tree if in solving stage reopt reoptimization data structure lp current LP data branchcand branching candidate storage eventqueue event queue vars binary variables in the clique: at most one can be set to the given value values values of the variables in the clique; NULL to use TRUE for all vars nvars number of variables in the clique isequation is the clique an equation or an inequality? infeasible pointer to store whether an infeasibility was detected nbdchgs pointer to count the number of performed bound changes, or NULL
Definition at line 2376 of file implics.c.
References cliqueCheck, cliqueCreateWithData(), cliqueFree(), SCIP_CliqueTable::cliques, cliquetableEnsureSize(), cliquetableUpdateConnectednessClique(), SCIP_Clique::equation, FALSE, SCIP_CliqueTable::hashtable, SCIP_Clique::id, SCIP_Clique::index, SCIP_CliqueTable::ncliques, SCIP_CliqueTable::ncreatedcliques, SCIP_CliqueTable::nentries, SCIP_Stat::nnz, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIPcliquetableGetNEntries(), SCIPdebugCheckClique, SCIPhashtableInsert(), SCIPhashtableRetrieve(), SCIPsetAllocBufferArray, SCIPsetDebugMsg, SCIPsetDuplicateBufferArray, SCIPsetFreeBufferArray, SCIPsetIsInfinity(), SCIPvarFixBinary(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarIsBinary(), SCIPvarIsMarkedDeleteGlobalStructures(), SCIPvarsAddClique(), SCIPvarsGetProbvarBinary(), sortAndMergeClique(), TRUE, and w.
Referenced by SCIPaddClique(), and varAddImplic().
◆ cliqueCleanup()
|
static |
clean up given clique by removing fixed variables
- Parameters
-
clique clique data structure blkmem block memory set global SCIP settings stat problem statistics transprob transformed problem origprob original problem tree branch and bound tree if in solving stage reopt reoptimization data structure lp current LP data branchcand branching candidate storage eventqueue event queue cliquetable clique table data structure nchgbds pointer to store number of fixed variables infeasible pointer to store whether an infeasibility was detected
Definition at line 2646 of file implics.c.
References SCIP_Clique::equation, FALSE, SCIP_Clique::id, NULL, SCIP_Clique::nvars, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_VARSTATUS_AGGREGATED, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_MULTAGGR, SCIP_VARSTATUS_NEGATED, SCIPcliqueIsCleanedUp(), SCIPsetDebugMsg, SCIPvarAddCliqueToList(), SCIPvarDelCliqueFromList(), SCIPvarFixBinary(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetNegationVar(), SCIPvarGetProbvarBinary(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarIsMarkedDeleteGlobalStructures(), sortAndMergeClique(), SCIP_Clique::startcleanup, TRUE, SCIP_Clique::values, SCIP_Clique::vars, and w.
Referenced by SCIPcliquetableCleanup().
◆ SCIPcliquetableCleanup()
| SCIP_RETCODE SCIPcliquetableCleanup | ( | SCIP_CLIQUETABLE * | cliquetable, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_SET * | set, | ||
| SCIP_STAT * | stat, | ||
| SCIP_PROB * | transprob, | ||
| SCIP_PROB * | origprob, | ||
| SCIP_TREE * | tree, | ||
| SCIP_REOPT * | reopt, | ||
| SCIP_LP * | lp, | ||
| SCIP_BRANCHCAND * | branchcand, | ||
| SCIP_EVENTQUEUE * | eventqueue, | ||
| int * | nchgbds, | ||
| SCIP_Bool * | infeasible | ||
| ) |
removes all empty and single variable cliques from the clique table; removes double entries from the clique table
- Note
- cliques can be processed several times by this method
- Parameters
-
cliquetable clique table data structure blkmem block memory set global SCIP settings stat problem statistics transprob transformed problem origprob original problem tree branch and bound tree if in solving stage reopt reoptimization data structure lp current LP data branchcand branching candidate storage eventqueue event queue nchgbds pointer to store number of fixed variables infeasible pointer to store whether an infeasibility was detected
Definition at line 2920 of file implics.c.
References checkNEntries, cliqueCheck, cliqueCleanup(), cliqueFree(), SCIP_CliqueTable::cliques, cliquetableSwapCliques(), SCIP_Clique::equation, FALSE, SCIP_CliqueTable::hashtable, SCIP_Clique::id, SCIP_CliqueTable::incleanup, SCIP_Clique::index, SCIP_CliqueTable::ncleanupaggrvars, SCIP_CliqueTable::ncleanupfixedvars, SCIP_CliqueTable::ncliques, SCIP_CliqueTable::ndirtycliques, SCIP_CliqueTable::nentries, SCIP_Stat::npresolaggrvars, SCIP_Stat::npresolfixedvars, NULL, SCIP_Clique::nvars, SCIP_Bool, SCIP_CALL, SCIP_LONGINT_FORMAT, SCIP_OKAY, SCIP_Real, SCIP_STAGE_PRESOLVING, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPcliqueIsCleanedUp(), SCIPeventCreateImplAdded(), SCIPeventqueueAdd(), SCIPeventqueueDelay(), SCIPeventqueueProcess(), SCIPhashtableInsert(), SCIPhashtableRemove(), SCIPhashtableRetrieve(), SCIPsetDebugMsg, SCIPsetGetStage(), SCIPvarDelCliqueFromList(), SCIPvarGetStatus(), SCIPvarGetType(), SCIPvarTryAggregateVars(), TRUE, SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by exitPresolve(), presolveRound(), and SCIPcleanupCliques().
◆ SCIPcliquetableComputeCliqueComponents()
| SCIP_RETCODE SCIPcliquetableComputeCliqueComponents | ( | SCIP_CLIQUETABLE * | cliquetable, |
| SCIP_SET * | set, | ||
| BMS_BLKMEM * | blkmem, | ||
| SCIP_VAR ** | vars, | ||
| int | nbinvars, | ||
| int | nintvars, | ||
| int | nimplvars | ||
| ) |
computes connected components of the clique table
an update becomes necessary if a clique gets added with variables from different components
- Parameters
-
cliquetable clique table data structure set global SCIP settings blkmem block memory vars array of problem variables, sorted by variable type nbinvars number of binary variables nintvars number of integer variables nimplvars number of implicit integer variables
Definition at line 3131 of file implics.c.
References SCIP_CliqueTable::cliques, cliquetableUpdateConnectednessClique(), SCIP_CliqueTable::compsfromscratch, SCIP_CliqueTable::djset, FALSE, SCIP_CliqueTable::ncliquecomponents, SCIP_CliqueTable::ncliques, NULL, SCIP_CALL, SCIP_OKAY, SCIPdisjointsetCreate(), SCIPdisjointsetFree(), SCIPdisjointsetGetComponentCount(), SCIPhashmapCreate(), SCIPhashmapInsertInt(), SCIPhashmapRemoveAll(), SCIPsetDebugMsg, SCIPvarGetProbvar(), SCIPvarIsActive(), SCIPvarIsBinary(), and SCIP_CliqueTable::varidxtable.
Referenced by SCIPcalcCliquePartition().
◆ SCIPvboundsGetNVbds()
| int SCIPvboundsGetNVbds | ( | SCIP_VBOUNDS * | vbounds | ) |
gets number of variable bounds contained in given variable bounds data structure
- Parameters
-
vbounds variable bounds data structure
Definition at line 3290 of file implics.c.
References SCIP_VBounds::len, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarGetNVlbs(), SCIPvarGetNVubs(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveImplic().
◆ SCIPvboundsGetVars()
| SCIP_VAR ** SCIPvboundsGetVars | ( | SCIP_VBOUNDS * | vbounds | ) |
gets array of variables contained in given variable bounds data structure
- Parameters
-
vbounds variable bounds data structure
Definition at line 3298 of file implics.c.
References NULL, and SCIP_VBounds::vars.
Referenced by SCIPvarAggregate(), SCIPvarGetVlbVars(), SCIPvarGetVubVars(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveImplic().
◆ SCIPvboundsGetCoefs()
| SCIP_Real * SCIPvboundsGetCoefs | ( | SCIP_VBOUNDS * | vbounds | ) |
gets array of coefficients contained in given variable bounds data structure
- Parameters
-
vbounds variable bounds data structure
Definition at line 3306 of file implics.c.
References SCIP_VBounds::coefs, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarGetVlbCoefs(), SCIPvarGetVubCoefs(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveImplic().
◆ SCIPvboundsGetConstants()
| SCIP_Real * SCIPvboundsGetConstants | ( | SCIP_VBOUNDS * | vbounds | ) |
gets array of constants contained in given variable bounds data structure
- Parameters
-
vbounds variable bounds data structure
Definition at line 3314 of file implics.c.
References SCIP_VBounds::constants, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarGetVlbConstants(), SCIPvarGetVubConstants(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveImplic().
◆ SCIPimplicsGetNImpls()
| int SCIPimplicsGetNImpls | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing | ||
| ) |
gets number of implications for a given binary variable fixing
- Parameters
-
implics implication data varfixing should the implications on var == FALSE or var == TRUE be returned?
Definition at line 3322 of file implics.c.
References SCIP_Implics::nimpls, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarGetImplRedcost(), SCIPvarGetNImpls(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveBinaryClosureImplic().
◆ SCIPimplicsGetVars()
| SCIP_VAR ** SCIPimplicsGetVars | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing | ||
| ) |
gets array with implied variables for a given binary variable fixing
- Parameters
-
implics implication data varfixing should the implications on var == FALSE or var == TRUE be returned?
Definition at line 3331 of file implics.c.
References NULL, and SCIP_Implics::vars.
Referenced by SCIPvarAggregate(), SCIPvarGetImplRedcost(), SCIPvarGetImplVars(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveBinaryClosureImplic().
◆ SCIPimplicsGetTypes()
| SCIP_BOUNDTYPE * SCIPimplicsGetTypes | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing | ||
| ) |
gets array with implication types for a given binary variable fixing
- Parameters
-
implics implication data varfixing should the implications on var == FALSE or var == TRUE be returned?
Definition at line 3340 of file implics.c.
References NULL, and SCIP_Implics::types.
Referenced by SCIPvarAggregate(), SCIPvarGetImplRedcost(), SCIPvarGetImplTypes(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveBinaryClosureImplic().
◆ SCIPimplicsGetBounds()
| SCIP_Real * SCIPimplicsGetBounds | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing | ||
| ) |
gets array with implication bounds for a given binary variable fixing
- Parameters
-
implics implication data varfixing should the implications on var == FALSE or var == TRUE be returned?
Definition at line 3349 of file implics.c.
References SCIP_Implics::bounds, and NULL.
Referenced by SCIPvarAggregate(), SCIPvarGetImplBounds(), SCIPvarGetImplRedcost(), SCIPvarRemoveCliquesImplicsVbs(), and varAddTransitiveBinaryClosureImplic().
◆ SCIPimplicsGetIds()
| int * SCIPimplicsGetIds | ( | SCIP_IMPLICS * | implics, |
| SCIP_Bool | varfixing | ||
| ) |
Gets array with unique implication identifiers for a given binary variable fixing. If an implication is a shortcut, i.e., it was added as part of the transitive closure of another implication, its id is negative, otherwise it is nonnegative.
- Parameters
-
implics implication data varfixing should the implications on var == FALSE or var == TRUE be returned?
Definition at line 3361 of file implics.c.
References SCIP_Implics::ids, and NULL.
Referenced by SCIPvarGetImplIds().
◆ SCIPcliqueGetNVars()
| int SCIPcliqueGetNVars | ( | SCIP_CLIQUE * | clique | ) |
gets number of variables in the cliques
- Parameters
-
clique clique data structure
Definition at line 3370 of file implics.c.
References NULL, and SCIP_Clique::nvars.
Referenced by addGLSCliques(), addNextLevelCliques(), applyCliqueFixings(), collectBinaryCliqueData(), collectMinactImplicVars(), createConflictGraphSST(), dfs(), extractCycle(), getCliqueUnfixedVars(), getMaxactImplicObjchg(), insertSortedRootNeighbors(), isNeighbor(), propagateVbounds(), SCIPcliquelistDel(), SCIPcopyImplicationsCliques(), SCIPnodePropagateImplics(), SCIPvarAddClique(), SCIPvarGetImplRedcost(), SCIPwriteCliqueGraph(), separateCuts(), tarjan(), tcliquegraphConstructCliqueTable(), and tightenWeightsLift().
◆ SCIPcliqueGetVars()
| SCIP_VAR ** SCIPcliqueGetVars | ( | SCIP_CLIQUE * | clique | ) |
gets array of active problem variables in the cliques
- Parameters
-
clique clique data structure
Definition at line 3380 of file implics.c.
References NULL, and SCIP_Clique::vars.
Referenced by addGLSCliques(), addNextLevelCliques(), applyCliqueFixings(), collectBinaryCliqueData(), collectMinactImplicVars(), createConflictGraphSST(), dfs(), extractCycle(), getCliqueUnfixedVars(), getMaxactImplicObjchg(), insertSortedRootNeighbors(), isNeighbor(), propagateVbounds(), SCIPcliquelistDel(), SCIPcopyImplicationsCliques(), SCIPnodePropagateImplics(), SCIPvarAddClique(), SCIPvarGetImplRedcost(), SCIPwriteCliqueGraph(), separateCuts(), tarjan(), tcliquegraphConstructCliqueTable(), and tightenWeightsLift().
◆ SCIPcliqueGetValues()
| SCIP_Bool * SCIPcliqueGetValues | ( | SCIP_CLIQUE * | clique | ) |
gets array of values of active problem variables in the cliques, i.e. whether the variable is fixed to FALSE or to TRUE in the clique
- Parameters
-
clique clique data structure
Definition at line 3392 of file implics.c.
References NULL, and SCIP_Clique::values.
Referenced by addGLSCliques(), addNextLevelCliques(), applyCliqueFixings(), collectBinaryCliqueData(), collectMinactImplicVars(), dfs(), extractCycle(), getMaxactImplicObjchg(), insertSortedRootNeighbors(), isNeighbor(), propagateVbounds(), SCIPcliquelistDel(), SCIPcopyImplicationsCliques(), SCIPnodePropagateImplics(), SCIPvarAddClique(), SCIPvarGetImplRedcost(), SCIPwriteCliqueGraph(), separateCuts(), tarjan(), tcliquegraphConstructCliqueTable(), and tightenWeightsLift().
◆ SCIPcliqueGetId()
| unsigned int SCIPcliqueGetId | ( | SCIP_CLIQUE * | clique | ) |
gets unique identifier of the clique
- Parameters
-
clique clique data structure
Definition at line 3402 of file implics.c.
References SCIP_Clique::id, and NULL.
Referenced by createConflictGraphSST(), SCIP_DECL_HASHKEYVAL(), SCIPcliquelistsHaveCommonClique(), and tcliquegraphAddNode().
◆ SCIPcliqueGetIndex()
| int SCIPcliqueGetIndex | ( | SCIP_CLIQUE * | clique | ) |
gets index of the clique in the clique table
- Parameters
-
clique clique data structure
Definition at line 3416 of file implics.c.
References SCIP_Clique::index, and NULL.
Referenced by createConflictGraphSST(), dfs(), and tarjan().
◆ SCIPcliqueIsCleanedUp()
| SCIP_Bool SCIPcliqueIsCleanedUp | ( | SCIP_CLIQUE * | clique | ) |
gets unique identifier of the clique
- Parameters
-
clique clique data structure
Definition at line 3426 of file implics.c.
References NULL, and SCIP_Clique::startcleanup.
Referenced by cliqueCleanup(), cliquetableMarkCliqueForCleanup(), SCIPcliquetableCleanup(), and SCIPvarGetImplRedcost().
◆ SCIPcliqueIsEquation()
| SCIP_Bool SCIPcliqueIsEquation | ( | SCIP_CLIQUE * | clique | ) |
return whether the given clique is an equation
- Parameters
-
clique clique data structure
Definition at line 3436 of file implics.c.
References SCIP_Clique::equation, NULL, and SCIP_Bool.
Referenced by extractCycle(), SCIPcopyImplicationsCliques(), and separateCuts().
◆ SCIPcliquelistGetNCliques()
| int SCIPcliquelistGetNCliques | ( | SCIP_CLIQUELIST * | cliquelist, |
| SCIP_Bool | value | ||
| ) |
returns the number of cliques stored in the clique list
- Parameters
-
cliquelist clique list data structure value value of the variable for which the cliques should be returned
Definition at line 3446 of file implics.c.
References SCIP_CliqueList::ncliques, and NULL.
Referenced by SCIPcliquelistCheck(), and SCIPvarGetNCliques().
◆ SCIPcliquelistGetCliques()
| SCIP_CLIQUE ** SCIPcliquelistGetCliques | ( | SCIP_CLIQUELIST * | cliquelist, |
| SCIP_Bool | value | ||
| ) |
returns the cliques stored in the clique list, or NULL if the clique list is empty
- Parameters
-
cliquelist clique list data structure value value of the variable for which the cliques should be returned
Definition at line 3455 of file implics.c.
References SCIP_CliqueList::cliques, and NULL.
Referenced by SCIPcliquelistCheck(), and SCIPvarGetCliques().
◆ SCIPcliquelistCheck()
| void SCIPcliquelistCheck | ( | SCIP_CLIQUELIST * | cliquelist, |
| SCIP_VAR * | var | ||
| ) |
checks whether variable is contained in all cliques of the cliquelist
- Parameters
-
cliquelist clique list data structure var variable, the clique list belongs to
Definition at line 3464 of file implics.c.
References FALSE, NULL, SCIP_Bool, SCIPcliquelistGetCliques(), SCIPcliquelistGetNCliques(), SCIPcliqueSearchVar(), SCIPvarGetCliques(), SCIPvarGetNCliques(), TRUE, SCIP_Clique::values, and SCIP_Clique::vars.
Referenced by SCIPvarAddClique(), SCIPvarDelClique(), and SCIPvarsAddClique().
◆ SCIPcliquetableGetNCliques()
| int SCIPcliquetableGetNCliques | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
gets the number of cliques stored in the clique table
- Parameters
-
cliquetable clique table data structure
Definition at line 3506 of file implics.c.
References SCIP_CliqueTable::ncliques, and NULL.
Referenced by presolve(), SCIPgetNCliques(), SCIPhaveVarsCommonClique(), and SCIPisPresolveFinished().
◆ SCIPcliquetableGetNCliquesCreated()
| int SCIPcliquetableGetNCliquesCreated | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
gets the number of cliques created so far by the clique table
- Parameters
-
cliquetable clique table data structure
Definition at line 3516 of file implics.c.
References SCIP_CliqueTable::ncreatedcliques, and NULL.
Referenced by SCIPgetNCliquesCreated().
◆ SCIPcliquetableGetCliques()
| SCIP_CLIQUE ** SCIPcliquetableGetCliques | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
gets the array of cliques stored in the clique table
- Parameters
-
cliquetable clique table data structure
Definition at line 3526 of file implics.c.
References SCIP_CliqueTable::cliques, and NULL.
Referenced by SCIPgetCliques().
◆ SCIPcliquetableGetNEntries()
| SCIP_Longint SCIPcliquetableGetNEntries | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
gets the number of entries in the whole clique table
- Parameters
-
cliquetable clique table data structure
Definition at line 3536 of file implics.c.
References SCIP_CliqueTable::nentries, and NULL.
Referenced by SCIPcliquetableAdd(), and SCIPprintTransProblemStatistics().
◆ SCIPcliquetableGetNCliqueComponents()
| int SCIPcliquetableGetNCliqueComponents | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
returns the number of clique components, or -1 if update is necessary first
- Parameters
-
cliquetable clique table data structure
Definition at line 3546 of file implics.c.
References SCIP_CliqueTable::compsfromscratch, and SCIP_CliqueTable::ncliquecomponents.
◆ SCIPcliquetableNeedsComponentUpdate()
| SCIP_Bool SCIPcliquetableNeedsComponentUpdate | ( | SCIP_CLIQUETABLE * | cliquetable | ) |
returns TRUE iff the connected clique components need an update (because new cliques were added)
- Parameters
-
cliquetable clique table data structure
Definition at line 3554 of file implics.c.
References SCIP_CliqueTable::compsfromscratch, SCIP_CliqueTable::djset, and NULL.
Referenced by SCIPcalcCliquePartition().